Public bug reported:
On Ubuntu 16.04, when installing Ubuntu to an nvme drive, Ubiquity fails
to install grub. In ubiquity/misc.py the function default_grub targets
/dev/nvme0 instead of /dev/nvme0n1, which is the real name of the
device.
For single drive scenarios, this can be fixed by filtering out nvme devices
from the regex line:
old:
target = re.sub(r'(/dev/(cciss|ida)/c[0-9]d[0-9]|/dev/[a-z]+).*',
r'\1', target)
fixed:
target = re.sub(r'(/dev/(cciss|ida)/c[0-9]d[0-9]|/dev/(?!nvme)[a-z]+).*',
r'\1', target)
For multi-drive scenarios, Ubiquity behaves inconsistently between bios
and uefi modes. In UEFI mode, default_grub behaves like the single
drive scenario and only sees the usb media (which it ignores) and the
nvme drive.
In BIOS mode, there is a device listed at /dev/sda before the nvme
drive. Ubiquity then tries to put grub on /dev/sda regardless that
we're installing to the nvme drive. Grub then fails to install on
/dev/sda.
This makes Ubuntu a pain to reinstall for our customers if they have an
nvme drive.
** Affects: ubiquity (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1600308
Title:
ubiquity targets wrong drive, fails to install grub with nvme disks
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